Microstructural and Mechanical Properties of Underwater Wet Welded SS400 Steel / N. M. L. P. K. Yasari ...[et al.]

K. Yasari, N. M. L. P. and Muhayat, Nurul and Triyono, Triyono and Saputro, Y. C. N. (2018) Microstructural and Mechanical Properties of Underwater Wet Welded SS400 Steel / N. M. L. P. K. Yasari ...[et al.]. Journal of Mechanical Engineering (JMechE), SI 5 (3). pp. 168-179. ISSN 18235514


Underwater wet welding is mainly used for repairing and maintenance of marine constructions. Shielded Metal Arc Welding (SMAW) is widely used in underwater wet welding. To investigate influence of welding parameters on weld joint of underwater wet shielded metal arc welding (SMAW), weld currents and electrode types were varied during welding process in the trial pool with water depth of 2.5 m. The non-destructive and destructive test including X-ray analysis, microstructure investigation, tensile, impact and hardness test were performed. The results reveal that there were a lot of defects for all specimens in the underwater wet welded joint due to the interfering environment. Due to these defects, the tensile strength was almost the same, it only increased slightly when the welding electric current increased. The increasing penetration due to increasing weld current was the main reason for this case. The highest hardness was found at Heat Affected Zone (HAZ) close to the fusion zone.


Item Type: Article
Email / ID Num.
K. Yasari, N. M. L. P.
Muhayat, Nurul
Triyono, Triyono
Saputro, Y. C. N.
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures > Metal manufactures. Metalworking
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 18235514
Volume: SI 5
Number: 3
Page Range: pp. 168-179
Keywords: underwater wet welding; electrode; weld current; microstructures; mechanical properties
Date: 2018
URI: https://ir.uitm.edu.my/id/eprint/39433
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